package demo03;

public class exercise29 {
	public static void main(String[] args) {
		double sum = 0;
		int array[][] = {{1,2,3},{4,5,6},{7,8,9}};
		for(int i =0 ;i<3;i++){
			for(int j=0;j<3;j++){
				if(i==j){
					sum+=array[i][j];
				}
			}
		}
		System.out.println(sum);
		
	}
}
